MICRO-HYDRO WATER INTAKES
This is an excellent article on water intakes
and filtration by Jerry Ostermeier
of Alternative Power. The article is
reprinted with permission of © 2008 Home Power Inc. www.homepower.com.
Many examples are given as to how to build and filter your penstock supply and the author has also graciously agreed to this re-print.
Another good article in the same magazine by the same author is called "Hydro Penstock"in the June no. 125 issue. It discusses in detail how to plan you micro-hydro intake or penstock, including thrust blocks for pipe supports, choice of materials, air relief, etc. You can get this article on the Home Power web site with a subscription fee.